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arXiv 2104.00766cs.CL
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可配置的隐私保护自动语音识别

Configurable Privacy-Preserving Automatic Speech Recognition

Imperial College London(帝国理工学院)

Ranya Aloufi, Hamed Haddadi, David Boyle

摘要:

语音辅助技术引起了广泛的隐私和安全问题。在本文中,我们调查模块化自动语音识别(ASR)是否可以提高语音辅助系统的隐私相结合的独立训练的分离,识别和离散化模块设计可配置的隐私保护ASR系统。我们评估隐私问题以及在系统的每个阶段应用各种最先进技术的效果,并使用特定于任务的指标(即WER,ABX和准确性)报告结果。我们发现,重叠的语音输入ASR系统提出了进一步的隐私问题,以及如何使用语音分离和优化技术来减轻这些问题。我们的离散化模块,以尽量减少从ASR声学模型到水平相称的随机猜测的语言隐私泄漏。我们表明,语音隐私是可以配置的,并认为这为隐私保护应用程序结合ASR提供了新的机会。

英文摘要:

Voice assistive technologies have given rise to far-reaching privacy and security concerns. In this paper we investigate whether modular automatic speech recognition (ASR) can improve privacy in voice assistive systems by combining independently trained separation, recognition, and discretization modules to design configurable privacy-preserving ASR systems. We evaluate privacy concerns and the effects of applying various state-of-the-art techniques at each stage of the system, and report results using task-specific metrics (i.e. WER, ABX, and accuracy). We show that overlapping speech inputs to ASR systems present further privacy concerns, and how these may be mitigated using speech separation and optimization techniques. Our discretization module is shown to minimize paralinguistics privacy leakage from ASR acoustic models to levels commensurate with random guessing. We show that voice privacy can be configurable, and argue this presents new opportunities for privacy-preserving applications incorporating ASR.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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